Replaced `==` with `===` and `!=` with `!==` in /system/core
diff --git a/system/core/Benchmark.php b/system/core/Benchmark.php
index bb630f4..2fabdf4 100755
--- a/system/core/Benchmark.php
+++ b/system/core/Benchmark.php
@@ -79,7 +79,7 @@
 	 */
 	public function elapsed_time($point1 = '', $point2 = '', $decimals = 4)
 	{
-		if ($point1 == '')
+		if ($point1 === '')
 		{
 			return '{elapsed_time}';
 		}